1 Hotel “Beach” bacteria levels

I moved here recently and a friend gave me a day pass to the 1 Hotel as a welcome present. I went yesterday, 8/26. There wasn’t a brown water advisory, but the water at their little beach was a bit murky to me and today I have a bit of a sinus infection and feel a little queasy.

I thought it was murky due to all the growth on the coral and perhaps a stronger tide, but is it possible the water in that area is just generally not as clean as it should be? It hasn’t rained too hard lately IMO, but since I’m new around here I’m just curious!